5 4 3 2 1 VDD18 0 TP1 1 19 SC2n FBLDO 20 14k FBldo 10k 3 WAKEn R24 1k R25 1k 4 RXD1 5 TXEN1 AGND RXD1 EN/UVLO R21 10k 0 7 J2 8 VDD18 1 2 3 4 5 SWITCH 9 SC1n 1 35 R13 1k SC2n 1 34 0 33 VDD3 1 Opto TP9 R23 1 SDA 1k TP11 30 1 TP13 C29 DNP 0 R49 47k 29 VDD3 RESETn 1 TDO 41 VDDCORE41 ERASE/PB12 1D43 42 DDM/PB10 VDD3 1uF R40 4 D+ 7 5 2 Jumper DJ6: Jumper 1-2 internal LTC2997 Sensor selected Jumper 2-3 Sensor Q1 selected ext. Diode wired to Pin 2 and Pin 4, no Jumper Vref R45 100k 6 R14 R47 100k R48 100k TDI 100nF 100R VPTAT 3 R54 100R LTC2997HDCB TEMP-Sensor TP34 Fiducial TMS 0 TCK TP35 Fiducial 4mV/K RESETn 0 LED1 VLMTG1300-GS08 LED green 1 4 0 RESETn J7 1 3 5 7 9 11 13 15 17 19 0 2 4 6 8 10 12 14 16 18 20 3 PA7/XIN32/PGMNVALID PA8/XOUT32/PGMM0 24 ATSAM3S2AA-AU LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS; HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL APPLICATION. COMPONENT SUBSTITUTION AND PRINTED CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT PERFORMANCE OR RELIABILITY. CONTACT LINEAR TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE. J5 R51 220R R50 4.7k B THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS. 3 1 U302 GP1S53VJ000F C28 DNP 4 C27 DNP 0 VDD3 0 R55 10k TP24 Fiducial TP25 Fiducial TP26 Fiducial TP27 Fiducial TP28 TP29 TP30 TP31 Hole4mm Hole4mm Hole4mm Hole4mm DNP TECHNOLOGY 1630 McCarthy Blvd. Milpitas, CA 95035 Phone: (408)432-1900 www.linear.com Fax: (408)434-0507 LTC Confidential-For Customer Use Only TITLE: SCHEMATIC IO-LINK TRANSCEIVER LT3669 SIZE 2 R52 DNP Opto CUSTOMER NOTICE 0 VDD3 DNP 1 2 3 4 5 6 JTAG www.teconcept.de 1 tel.: +49-761 214436-0 R46 100k TDO PP GND C30 470p C23 VCC U4 1 TP22 TP23 VDD3 1V8ref 100R R15 1k Q1 MMBT3904 R43 4.7k 0 PP 1 1 Orbitec_OR1206_BA9 LP1 ground terminal should 2 0 be the external case of light bulb socket! 28V100mA LED 49 Y2 0 1 R42 4.7k TP18 TDI/PB4 1 R39 TP21 1 TXD2 1k TDI optional MISO 0 R33 25 2 R38 1k 26 PA6/PGMNOE 1 1k 1 TXEN2 TP17 1 1 TXEN1 0 0 D 79106 Freiburg VDD18 0 TP20 C17 DNP 50V 1 1 0 TP19 0 DIO DNP RXD2 1 L+ SCL R31 1 VDD3 D5 SM6T39A D8 R28 1k 1 SC1n RST_n SYNC 1k 1 KPG-1608SURKC-T KPG-1608SURKC-T LED red PA9/PGMM1 LED3 D4 SM6T39A 22 LED2 D3 SM6T39A LED D2 SM6T39A 1k R35 1.8k 23 PA20/AD3 RXD1R37 0 R34 1.8k PA19/PGMD7/AD2 1 0 12 PA10/PGMM2 0 28 27 TP15 PA5/PGMRDY PA11/PGMM3 C26 10uF_50V_X7R R44 0R PA18/PGMD6/AD1 21 10 1k 1k C25 470pF_100V 0 5 1k 31 PA4/PGMNCMD TXD1 R36 1WAKEn R30 11 0 0 1 2 3 4 Wentzingerstr. 21 R11 TP16 7 6 CQ1 TXEN2 TXEN1 J6 TEConcept GmbH 36 32 NRST PA17/PGMD5/AD0 VDD3 0 1D+ VDDOUT MOSI 2 4 6 8 10 12 14 16 1 TP14 PA12/PGMD0 10 C31 3 0 TP5 TST 20 Q2 0 VDD3 2 DDP/PB11 VDDIN 1 9 C24 470pF_100V Jumper2-3 FSM4JSMA TE CONNECTIVITY / ALCOSWITCH 45 PA3 13 1 3 5 7 9 11 13 15 RESETn RST_n 4 44 PB3/AD7 VDDCORE L+ Binder_09-3441-500-05 Q2 1 0 C 6 1V8ref TP8 19 CQ1 J9 SWITCH XOUT/PB8 PA2/PGMEN2 18 11 RSTn A 46 48 Vpll PB2/AD6 SPCK 2 1 3 2 1 100k 0 TXD2 1 TP33 5V not needed HEADER 2X8 2MM to demoboard DC1733 SW1 0 TP6 PA1/PGMEN1 VDDIO33 PA13/PGMD1 Q2 J4 R53 4.7k PA0/PGMEN0 PB1/AD5 PA14/PGMD2 TXEN2 LT3669HUFD-2 3 2 1 5 17 L+ L+ Jumper2-3 4 VDD3 1k 8 J8 C12 1uF 100nF SR 0 C11 1uF enable internal Pullup: PA0, PA1, PA3 GND34 16 TXD1 J3 Jumper VDD3 10k C10 1uF 0 PB0/AD4 PA15/PGMD3 R32 TXD2 VDD3x R19 1k 7 TXD2 TXD1 RXD1 WAKEn SC2n 3 C21 0 100nF PA16/PGMD4 R29 TXEN2 B 0 0 TP TP12 12 EN R26 2 GND2 15 6 88.7k C22 1uF 4.42k 0 1 0 0 1k TXD1 R41 R20 13 DIO DIO TXEN1 23 VDD3 ADVREF VDDIO13 R27 WAKEn GND29 VDD3 29 R22 1 0 R18 2 D7 BAV199 3.28V SC1n 2 0 C20 0 RSTn LDO C19 1uF 4mV/K 100k SC2n EN 26 ILIM 1 TP10 VDD3x C5 4.7uF D TP3 TDO/TRACESWO/PB5 SR TP2 TCK/SWCLK/PB7 1 SYNC 100k SC1n C 0 14 1 28 RSTn DNP 0 C4 100nF 1 SR 25 U3 38.3k R12 84.5k CPOR R17 R6 22RT DA TP TP4 SYNC 24 2 OUT SW RT C33 10pF IN 3 100k R16 1 VDD3 C18 22uF_X5R 0 DA 14 RSTn R4 10.2k VDDPLL SW 15 D1 DFLS160 CPOR C16 100nF 27 CPOR GND C15 220nF_X7R BST VDD3 100nF U2 BST 16 0 C14 0 1uF R7 1k C3 100nF C9 4.7uF TP32 38 R10 XIN/PB9/PGMCK FBout 41.2k FBout VDDIO47 LDOin 21 0 VDD18 37 R3 18 C2 100nF VDD18 BD C13 0 0 J1 1 DNP 2 14.7456MHz 0 3 1 R1 1k SMD or THT Y1 1 JTAGSEL C8 4.7uF_X5R 2 47 D 1 TMS Optional_Tantal_A R2 0R 17 C1 100nF C7 18pF 39 1 C100 0 C6 18pF TMS/SWDIO/PB6 L1 10uH VDD3 C32 DNP U1 VDD3 TCK LDOin 2 0 2 D6 DNP 40 L2 CDRH50D28RNP-330MC VDD3 N/A DATE: IC NO. REV. LT3669HUFD-2 DEMO CIRCUIT 2227A SHEET Friday, April 10, 2015 1 2 1 OF 1 A